00390pam a2200133 a 4500020000500000041000500005082001500010245010300025250001700128260004700145300001900192653002500211700002000236  c  h  a005.1bSHA  aDesign Patterns Explained A New Perspective on Object-Oriented Design / cNULL.hTextual Documents  a2nd ed / b.  aDelhi : bPearson Education Inc. , c2006.  a960 ; c24*18.  aSoftware Engineering  aTrott, James R.